This patch is based on Bharata's v11 KVM patches for secure guests: https://lists.ozlabs.org/pipermail/linuxppc-dev/2019-November/200918.html --- From: Sukadev Bhattiprolu <sukadev@xxxxxxxxxxxxxxxxxx> Date: Fri, 13 Dec 2019 15:06:16 -0600 Subject: [PATCH V3 1/2] KVM: PPC: Add skip_page_out parameter Add 'skip_page_out' parameter to kvmppc_uvmem_drop_pages() which will be needed in a follow-on patch that implements H_SVM_INIT_ABORT hcall. Signed-off-by: Sukadev Bhattiprolu <sukadev@xxxxxxxxxxxxx> --- arch/powerpc/include/asm/kvm_book3s_uvmem.h | 4 ++-- arch/powerpc/kvm/book3s_64_mmu_radix.c | 2 +- arch/powerpc/kvm/book3s_hv.c | 2 +- arch/powerpc/kvm/book3s_hv_uvmem.c | 4 ++-- 4 files changed, 6 insertions(+), 6 deletions(-) diff --git a/arch/powerpc/include/asm/kvm_book3s_uvmem.h b/arch/powerpc/include/asm/kvm_book3s_uvmem.h index 50204e228f16..3cf8425b9838 100644 --- a/arch/powerpc/include/asm/kvm_book3s_uvmem.h +++ b/arch/powerpc/include/asm/kvm_book3s_uvmem.h @@ -20,7 +20,7 @@ unsigned long kvmppc_h_svm_init_start(struct kvm *kvm); unsigned long kvmppc_h_svm_init_done(struct kvm *kvm); int kvmppc_send_page_to_uv(struct kvm *kvm, unsigned long gfn); void kvmppc_uvmem_drop_pages(const struct kvm_memory_slot *free, - struct kvm *kvm); + struct kvm *kvm, bool skip_page_out); #else static inline int kvmppc_uvmem_init(void) { @@ -69,6 +69,6 @@ static inline int kvmppc_send_page_to_uv(struct kvm *kvm, unsigned long gfn) static inline void kvmppc_uvmem_drop_pages(const struct kvm_memory_slot *free, - struct kvm *kvm) { } + struct kvm *kvm, bool skip_page_out) { } #endif /* CONFIG_PPC_UV */ #endif /* __ASM_KVM_BOOK3S_UVMEM_H__ */ diff --git a/arch/powerpc/kvm/book3s_64_mmu_radix.c b/arch/powerpc/kvm/book3s_64_mmu_radix.c index da857c8ba6e4..744dba98e5d1 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_radix.c +++ b/arch/powerpc/kvm/book3s_64_mmu_radix.c @@ -1102,7 +1102,7 @@ void kvmppc_radix_flush_memslot(struct kvm *kvm, unsigned int shift; if (kvm->arch.secure_guest & KVMPPC_SECURE_INIT_START) - kvmppc_uvmem_drop_pages(memslot, kvm); + kvmppc_uvmem_drop_pages(memslot, kvm, true); if (kvm->arch.secure_guest & KVMPPC_SECURE_INIT_DONE) return; diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index 597f4bfecf0e..66d5312be16b 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -5493,7 +5493,7 @@ static int kvmhv_svm_off(struct kvm *kvm) continue; kvm_for_each_memslot(memslot, slots) { - kvmppc_uvmem_drop_pages(memslot, kvm); + kvmppc_uvmem_drop_pages(memslot, kvm, true); uv_unregister_mem_slot(kvm->arch.lpid, memslot->id); } } diff --git a/arch/powerpc/kvm/book3s_hv_uvmem.c b/arch/powerpc/kvm/book3s_hv_uvmem.c index f24ac3cfb34c..9a5bbad7d87e 100644 --- a/arch/powerpc/kvm/book3s_hv_uvmem.c +++ b/arch/powerpc/kvm/book3s_hv_uvmem.c @@ -259,7 +259,7 @@ unsigned long kvmppc_h_svm_init_done(struct kvm *kvm) * QEMU page table with normal PTEs from newly allocated pages. */ void kvmppc_uvmem_drop_pages(const struct kvm_memory_slot *free, - struct kvm *kvm) + struct kvm *kvm, bool skip_page_out) { int i; struct kvmppc_uvmem_page_pvt *pvt; @@ -277,7 +277,7 @@ void kvmppc_uvmem_drop_pages(const struct kvm_memory_slot *free, uvmem_page = pfn_to_page(uvmem_pfn); pvt = uvmem_page->zone_device_data; - pvt->skip_page_out = true; + pvt->skip_page_out = skip_page_out; mutex_unlock(&kvm->arch.uvmem_lock); pfn = gfn_to_pfn(kvm, gfn); -- 2.17.2
